We present opportunistic renewal, a lease management protocol designed to keep distributed file systems or distributed shared memories consistent in the presence of a network partition or other computer failures. Our treatment includes an analytical model of the protocol that compares performance with existing lease protocols and quantifies improvements. In addition, this analytical model provi...

This paper examines the effects of differential lease structures on patterns and levels of real estate returns in the context European economic and monetary convergence and integration. The cash flows of different lease structures are modelled in order to assess the nature of differential investment performance produced by varying lease structures and the extent and nature of such differences. ...

Service-oriented architecture concepts and Web Services specifications allow for an infinite binding between the service requestor and the service provider. This open-ended form of interaction constrains the service provider from changing service contracts, policies and endpoints. Other distributed technologies and protocols such as Jini and DHCP provide for the use of a lease to more easily ma...

Leasing is a very effective way to improve the performance of distributed algorithms without hampering their fault-tolerance. The notion of lease has traditionally been defined using a global notion of real time and was hence strongly tied to synchronous system models. This paper introduces a notion of lease object devised for an asynchronous system model. We give precise properties of our leas...

Purpose The purpose of this paper is to exhibit the impacts of lease duration and lease break options on the optimal holding period for a real estate asset or portfolio. Methodology/approach We use a Monte Carlo simulation framework to simulate a real estate asset’s cash-flows in which lease structures (rent, indexation pattern, overall lease duration and break options) are explicitly taken int...

Consider a decision support system for capital asset acquisitions (Wallingford and Sticklen 1985). The system helps users decide whether to purchase an asset or lease it from another company. Each of these alternatives leads to more specific decisions, such as whether to structure a leasing arrangement as a direct lease, a leveraged lease, or a conditional sale. All of these decisions depend on...

There are many methods to maintain the consistency in the distributed computing environment. Efficient schemes for maintaining consistency should ideally take into account the following factors: lease duration of replicated data, data access pattern and system parameters. Lease method is used to supply the strong consistency in the web environment. During the proxy’s lease time from web server,...

This paper presents a model for estimating the number of discarded products, taking sales mode differences into account. The model is constructed using actual copying machine collection data. The analysis of the data makes it clear that users who own and users who lease behave quite differently from each other, and that users who lease can be divided into two types: those who are conscious of t...

We present a storage primitive called a storage lease. Data stored under a lease cannot be written for a pre-determined period. During the lease period, online data is protected from corruption due to security breaches, software errors, or accidental data deletion. Storage leases fill an important gap in the spectrum of data protection options because they combine strong integrity for online da...

Leasing has become an increasingly prominent way for consumers to acquire durable goods such as automobiles. How markets respond to changes in lease contracts has enormous implications to producers such as Ford Motor Company. In this paper, an experimental model was developed to study the interaction between lease contracts that embed an option to purchase and an underlying used-goods market. E...